"Driving with confidence in the colder months doesn't mean sacrificing performance. Conquer the elements this year with a set of BMW Approved Cold Weather Wheels & Tires. Starting at just 45F, cooler weather has an immediate impact on the rubber compounds of both Summer and All-Season tires. Why? Rubber begins to harden as the temperature drops, negatively impacting not only a tire’s road gripping ability but also the vehicles steering and responsiveness, even on BMW Models equipped with X-Drive. BMW Approved Cold Weather Wheel & Tire Sets are designed with cold-resistant rubber/silica compounds that retain flexibility, sophisticated tread designs that help grip the snow and ice and deeper self-cleaning tread patterns that help reduce the risk of hydroplaning.This set is sold assembled and ready for easy installation on the following models : G05 X5Wheel Set Specifications: Rims: M Performance Style 748M BlackTires: Pirelli Scorpion Winter R-F*Rim DimensionsFront / Rear: 9J x 20Tire DimensionsFront / Rear: 275/45R20 110V XL RSCBMW Cold Weather Wheel & Tire Sets are mounted and high speed balanced & include Tire Pressure Monitoring Sensors. BMW’s award winning light alloy wheels included in this set are extensively tested for over 200,000 miles under salt spray and on gravel tracks to ensure your Cold weather wheel and tire set looks it’s best for years to come."